DE69128023T2 - Gerät und Verfahren für die Wiedergabe von Signalen - Google Patents
Gerät und Verfahren für die Wiedergabe von SignalenInfo
- Publication number
- DE69128023T2 DE69128023T2 DE69128023T DE69128023T DE69128023T2 DE 69128023 T2 DE69128023 T2 DE 69128023T2 DE 69128023 T DE69128023 T DE 69128023T DE 69128023 T DE69128023 T DE 69128023T DE 69128023 T2 DE69128023 T2 DE 69128023T2
- Authority
- DE
- Germany
- Prior art keywords
- signal
- signals
- units
- output
- coefficients
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 16
- 230000006870 function Effects 0.000 claims description 31
- 238000013528 artificial neural network Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 210000002569 neuron Anatomy 0.000 claims 1
- 239000011159 matrix material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 239000012788 optical film Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 102100033070 Histone acetyltransferase KAT6B Human genes 0.000 description 1
- 101100019690 Homo sapiens KAT6B gene Proteins 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10481—Improvement or modification of read or write signals optimisation methods
- G11B20/10518—Improvement or modification of read or write signals optimisation methods using neural networks
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N3/00—Computing arrangements based on biological models
- G06N3/02—Neural networks
- G06N3/04—Architecture, e.g. interconnection topology
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N3/00—Computing arrangements based on biological models
- G06N3/02—Neural networks
- G06N3/06—Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons
- G06N3/063—Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons using electronic means
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
- G11B11/10515—Reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
- G11B11/1053—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed to compensate for the magnetic domain drift or time shift
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Biomedical Technology (AREA)
- Evolutionary Computation (AREA)
- Artificial Intelligence (AREA)
- Health & Medical Sciences (AREA)
- Biophysics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Computing Systems (AREA)
- Computational Linguistics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Software Systems (AREA)
- Data Mining & Analysis (AREA)
- Neurology (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
- Character Discrimination (AREA)
- Electrically Operated Instructional Devices (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2411124A JPH04216343A (ja) | 1990-12-17 | 1990-12-17 | 信号再生装置および方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69128023D1 DE69128023D1 (de) | 1997-11-27 |
DE69128023T2 true DE69128023T2 (de) | 1998-02-19 |
Family
ID=18520172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69128023T Expired - Fee Related DE69128023T2 (de) | 1990-12-17 | 1991-12-13 | Gerät und Verfahren für die Wiedergabe von Signalen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5295130A (ja) |
EP (1) | EP0491301B1 (ja) |
JP (1) | JPH04216343A (ja) |
KR (1) | KR920013299A (ja) |
DE (1) | DE69128023T2 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2797035B2 (ja) * | 1991-01-31 | 1998-09-17 | 日本ビクター株式会社 | ニューラルネットによる波形処理装置及びその設計方法 |
JPH06112931A (ja) * | 1992-09-30 | 1994-04-22 | Victor Co Of Japan Ltd | デジタル信号の前処理方法 |
KR100234451B1 (ko) * | 1994-05-18 | 2000-01-15 | 모리시타 요이찌 | 신호 기록 및 재생 장치 |
WO1996006433A1 (fr) * | 1994-08-25 | 1996-02-29 | Sony Corporation | Disque optique et unite de disque optique |
US6215758B1 (en) * | 1996-10-04 | 2001-04-10 | Sony Corporation | Recording medium |
US5978782A (en) * | 1996-07-05 | 1999-11-02 | National Semiconductor Corporation | Neural network signal processor for magnetic storage channels |
US6310851B1 (en) | 1997-01-21 | 2001-10-30 | Sony Corporation | Frequency demodulating circuit, optical disk apparatus thereof and preformating device |
US6385257B1 (en) * | 1997-01-21 | 2002-05-07 | Sony Corporation | Frequency demodulating circuit, optical disk apparatus thereof and preformating device |
JP4636635B2 (ja) * | 1997-03-19 | 2011-02-23 | 株式会社日立製作所 | ディスク再生装置およびディスク再生方法 |
JP3429166B2 (ja) | 1997-08-28 | 2003-07-22 | 富士通株式会社 | 光学的記憶装置 |
JPH11273254A (ja) * | 1998-03-20 | 1999-10-08 | Toshiba Corp | ディスク記憶装置 |
JP3764269B2 (ja) * | 1998-03-20 | 2006-04-05 | 株式会社東芝 | ディスク記憶装置 |
JP2000182292A (ja) * | 1998-12-15 | 2000-06-30 | Fujitsu Ltd | 光学的記憶装置及び光記憶媒体の記録再生方法 |
US7082566B2 (en) * | 2001-11-09 | 2006-07-25 | Kabushiki Kaisha Toshiba | Signal quality evaluation method, information recording/reproducing system, and recording compensation method |
US8693125B1 (en) * | 2013-01-17 | 2014-04-08 | Lsi Corporation | Cross clock phase measurement |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4905109A (en) * | 1987-12-23 | 1990-02-27 | Konica Corporation | Process for optimizing head position to overcome disk misclamping and imperfections |
US5093899A (en) * | 1988-09-17 | 1992-03-03 | Sony Corporation | Neural network with normalized learning constant for high-speed stable learning |
JPH0785336B2 (ja) * | 1989-05-29 | 1995-09-13 | パイオニア株式会社 | 記録情報の読取り装置 |
EP0449516B1 (en) * | 1990-03-23 | 1997-01-08 | Canon Kabushiki Kaisha | Image processing using neural network |
JPH03288285A (ja) * | 1990-04-04 | 1991-12-18 | Takayama:Kk | データ処理装置の学習方法 |
-
1990
- 1990-12-17 JP JP2411124A patent/JPH04216343A/ja not_active Withdrawn
-
1991
- 1991-12-04 US US07/803,645 patent/US5295130A/en not_active Expired - Lifetime
- 1991-12-12 KR KR1019910022721A patent/KR920013299A/ko not_active Application Discontinuation
- 1991-12-13 EP EP91121433A patent/EP0491301B1/en not_active Expired - Lifetime
- 1991-12-13 DE DE69128023T patent/DE69128023T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69128023D1 (de) | 1997-11-27 |
US5295130A (en) | 1994-03-15 |
EP0491301B1 (en) | 1997-10-22 |
KR920013299A (ko) | 1992-07-28 |
JPH04216343A (ja) | 1992-08-06 |
EP0491301A1 (en) | 1992-06-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |